| Ontario Rank | Board Rank | School | Board | City | Type | Overall Score | 2023‑24 | 2022‑23 | 2021‑22 | 3‑Year Change | Website |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 284 | 1 | St. Mary Catholic Secondary School | Peterborough Victoria Northum Clarington CDSB | Cobourg | Catholic | 7.2 | 7.2 | 7.7 | 6.6 | +0.6 ↑ | Visit |
| 595 | 9 | Cobourg Collegiate Institute | Kawartha Pine Ridge DSB | Cobourg | Public | 5.8 | 5.8 | 6.1 | 6.6 | -0.8 ↓ | Visit |
| 816 | 14 | Centre for Individual Studies Northumberland | Kawartha Pine Ridge DSB | Cobourg | Public | — | — | — | — | — | Visit |